Tag: Engine Repair

I developed a new engine noise after a high speed run on my 2004 Yamaha Grizzly 660.

In the video I will take you step by step through my process of troubleshooting and how to isolate the cause of the noise, and then assess the damage. I also demonstrate how to use a mechanics stethoscope, check for loose valves, check spark plug color for ignition issues, how to check valve timing, and several other common issues while we looked for the issue.